Cave Formations

Cave Formations
By: Cave Spelunking

There are more than a dozen differently named cave formations. The collective term for all of them is "speleothems," much like the collective term for blooms is "flowers." The best-known cave formations are stalactites and stalagmites.

Stalactites are the icicle shaped rock-like formations that hang from the ceiling of cave chambers. All of them began ages ago with a single drop of water and all of them have a central hallow tube.

Stalagmites might be thought of as the children of stalactites. They are formed by water dripping off of the parent stalactite. Stalagmites are smoother than stalactites, and they don't have a hallow tube at their center.

A column is a speleothem that's formed when the stalagmite grows upward and the parent stalactite grows downward until the two meet and grow together to form a column.

Helictites are another speleothem, and the best minds in the scientific world still can't explain them. They remain a mystery. They look a great deal like a tree root that is growing in all directions in search of water. Helictites are the most delicate and most beautiful of the cave formations.

One of the more interesting speleothem is the Gypsum Flower. Gypsum is a mineral made up of calcium and sulfur. Gypsum forms in the dry areas of the cave. It forms a crust that reflects light and makes it appear to sparkle. Gypsum Flowers are twisted projections that don't require any support. Usually they are about a foot in length. They're very fragile and sometimes fall from their own weight. Native Americans harvested gypsum and used it as paint for their faces and body and also for medical purposes.

All of the apparent magic afforded to modern-day scientists still can't unlock many of the mysterious formations in caves.

Rock On & Keep Spelunking...
Cave Spelunking.